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单词 conelrad
释义 con·el·rad
\ˈkänəlˌrad, -ˌraa(ə)d\ noun
(-s)
Etymology: control of electromagnetic radiation
: a system for preventing an enemy from using radio signals from any particular AM station as a guide for aircraft or missiles by shifting all AM stations to either of the frequencies 640 or 1240 and having them broadcast in a group in random order for short intervals on only these frequencies
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更新时间:2024/9/22 20:34:49